Dear All
For the line crossing from points P0(x0,y0,z0) and P1(x1,y1,z1) and in the direction of vector P0P1 we know that :
P0P1 (x1x0,y1y0,z1z0)
So the line equation will be :
(xx0)/(x1x0)=(yy0)/(y1y0)=(zz0)/(z1z0)
So how we can obtain the coordinates of the middle point M(x,y,z) on the P0P1 line with equal distance from P0 and P1?
(Can you please let me know how can I write mathematics formula here? For example, writing them in Microsoft Word 2007 and then copypaste here?)
Analytic geometry?

 Posts: 17
 Joined: Fri May 27, 2011 7:52 pm
Re: Analytic geometry?
Are you asking about how you would get the midpoint on the line with endpoints P0 and P1?
If this is what you're asking, use the midpoint formula:
((x1x0)/2, (y1y0)/2, (z1z0)/2))
If this is what you're asking, use the midpoint formula:
((x1x0)/2, (y1y0)/2, (z1z0)/2))

 Posts: 34
 Joined: Thu Dec 30, 2010 4:36 am
Re: Analytic geometry?
Thank you very much for your help. It is exactly what I meant.

 Posts: 34
 Joined: Thu Dec 30, 2010 4:36 am
Re: Analytic geometry?
Sorry. What about copypaste mathematics formula here?
Re: Analytic geometry?
Trying to do fancy mathematical formulas is more effort than it's worth  what you wrote was fine, really. If you really really want the equations to look nice, you could use MathBin. http://mathbin.net/